A water balance equation in a given watershed does not include:
A. precipitation
B. evapotranspiration
C. ground water
D. none of the above.
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c. ground water
There are ________ soil master horizons including the bedrock (R) horizon.
A. 3
B. 4
C. 5
D. 6
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, d. 6
If a sandy soil with a water content of 15% and water potential of -10 kPa is placed in
contact with a clay soil with 25% water content and water potential of -40 kPa, water
will move from the sandy soil to the clayey soil.
A. True
B. False
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a. true
The subgroup name for Dothan, fine, mesic, Typic argiaqults soil according to soil
Taxonomy system is:
A. argiaquults
B. ultisols
C. Typic argiaquults
D. aquults
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c. typic argiaquults
Igneous, sedimentary, and metamorphic are three _________.
A. types of rocks
B. basic classes of soils
C. name of master horizon
D. forms of minerals
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a. types of rocks
The average C:N ratio of a mineral Ap and B horizons is approximately:
A.100:1
B. 1:100
C. 10:1
D. 1:10
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c. 10:1
The sources of negative charges in soil colloids are:
A. CEC and constant charge
B. constant charge and pH dependent charge
C. AEC and pH dependent charge
D. all of the above
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b. constant charge and pH dependent charge
Compared to the bulk soil in which the earthworms live, earthworm casts contain ____.
A. less of most plant-available nutrients B. more nitrogen but less of other plant-
available nutrients
C. more of most plant-available nutrients
D. more sand and silt
A. precipitation
B. evapotranspiration
C. ground water
D. none of the above.
Give this one a try later!
c. ground water
There are ________ soil master horizons including the bedrock (R) horizon.
A. 3
B. 4
C. 5
D. 6
Give this one a try later!
, d. 6
If a sandy soil with a water content of 15% and water potential of -10 kPa is placed in
contact with a clay soil with 25% water content and water potential of -40 kPa, water
will move from the sandy soil to the clayey soil.
A. True
B. False
Give this one a try later!
a. true
The subgroup name for Dothan, fine, mesic, Typic argiaqults soil according to soil
Taxonomy system is:
A. argiaquults
B. ultisols
C. Typic argiaquults
D. aquults
Give this one a try later!
c. typic argiaquults
Igneous, sedimentary, and metamorphic are three _________.
A. types of rocks
B. basic classes of soils
C. name of master horizon
D. forms of minerals
, Give this one a try later!
a. types of rocks
The average C:N ratio of a mineral Ap and B horizons is approximately:
A.100:1
B. 1:100
C. 10:1
D. 1:10
Give this one a try later!
c. 10:1
The sources of negative charges in soil colloids are:
A. CEC and constant charge
B. constant charge and pH dependent charge
C. AEC and pH dependent charge
D. all of the above
Give this one a try later!
b. constant charge and pH dependent charge
Compared to the bulk soil in which the earthworms live, earthworm casts contain ____.
A. less of most plant-available nutrients B. more nitrogen but less of other plant-
available nutrients
C. more of most plant-available nutrients
D. more sand and silt
